Re the smoked meter lenses.
Some months back I got hold of a 400 with meters like that. The tint was so dark it was hard to notice that the original incandescent bulbs were even lit.
The new light board I put in had blue LED's that did not look good at all behind the tinting. After swapping out the blue LED'e for "Bright White" LED's all was good.
Just my opinion, but I don't think coloured LED's would look right except with clear lenses.